An orthogonal frequency division multiplexing (OFDM) receiver includes detection logic, offset generation logic, tone erasure logic, and correction generation logic. The detection logic is configured to detect a signal containing a block of samples that includes a narrowband interferer from a communication channel. The offset generation logic is configured to align a frequency of the narrowband interferer to a center of a subcarrier frequency of the communication channel to produce an offset signal thereby introducing inter-carrier interference (ICI). The tone erasure logic is configured to remove the subcarrier frequency from the offset signal to produce an interferer erased offset signal. The correction generation logic is configured to remove the ICI to produce an interferer erased signal.

The embodiment of the disclosure discloses a method and device for eliminating Inter-Carrier Interference (ICI) and a computer storage medium. The method for eliminating the ICI includes that: a user frequency offset value is acquired; an order of a filter is determined according to the user frequency offset value; a filter coefficient is constructed according to the order of the filter; user carrier data is received; and ICI elimination is performed on a target subcarrier according to frequency-domain data on adjacent subcarriers of the target subcarrier and filter coefficients of corresponding positions of the adjacent subcarriers, wherein the target subcarrier is any carrier in the user carrier data.

Provided are a receiver, a transmitter and a radio communication method capable of using non-orthogonal multiple access while suppressing cost increase and processing delay. A mobile station 200A includes a physical channel segmentation unit 210 and data demodulating/decoding units 220. A radio resource block allocated to non-orthogonal signals is defined in a frequency domain, a time domain and a non-orthogonal multiplex domain. The non-orthogonal multiplex domain has multiple levels corresponding to the number of interference cancellations by the data demodulating/decoding units 220. Interference canceller of the mobile station 200A cancels a non-orthogonal signal whose allocated radio resource block is at a lower level than that of the mobile station 200A.

A system of multiple concurrent receivers is described to process multiple narrow bandwidth wireless signals with arbitrary bandwidth and center frequency separation. These multiple receivers may provide a downconverted signal at the baseband frequency to process signal bandwidth using the lowest power consumption while using fully modular signal processing blocks operating at the low frequency. The concurrent receivers may operate from a single high frequency amplifier and may be derived from a low impedance point to reduce loading and improve scalability. The center frequency and bandwidth of each of the channels as well as phases of each of the channels may be independently reconfigured to achieve scalability, and on-chip test and calibration capability.

Provided are a receiver, a transmitter and a radio communication method capable of using non-orthogonal multiple access while suppressing cost increase and processing delay. A mobile station [200A] includes a physical channel segmentation unit [210] and data modulating/decoding units [220]. A radio resource block allocated to non-orthogonal signals is defined in a frequency domain, a time domain and a non-orthogonal multiplex domain. The non-orthogonal multiplex domain has multiple levels corresponding to the number of interference cancellations by the data demodulating/decoding units [220]. Interference canceller of the mobile station [200A] cancels a non-orthogonal signal whose allocated radio resource block is at a lower level than that of the mobile station [200A].

A communication terminal is described comprising a radio frequency receiver configured to receive a signal comprising signal components transmitted via different communication channels, each modulated based on a common modulation symbol shared by the plurality of communication channels, an equalizer for each communication channel configured to equalize the signal received based on respective one or more channel parameters, a demodulator for each communication channel configured to calculate probability information information bits to be equal to a particular binary value, a combiner configured to combine the probability information calculated for the plurality of communication channels and a decoder configured to generate reconstructed useful data based on the combined probability information.

A method by which a terminal receives data in a wireless communication system can comprise the steps of: receiving configuration information relating to a control resource of a physical control channel; allowing one or more control resources included in the configuration information to be respectively set to a first control resource group or a second control resource group, and receiving a first physical control channel and a second physical control channel on the basis of the configuration information; receiving a first physical data channel on the basis of the first control resource group related to a control resource in which the first physical control channel is received; and receiving a second physical data channel on the basis of the second control resource group related to a control resource in which the second physical control channel is received.

The present disclosure provides an apparatus and a method for canceling inter-modulation (IM) products in a transceiver. The apparatus includes: a pre-distortion circuit configured to estimate a first IM product caused by a transmission signal and pre-distort the transmission signal to cancel the first IM product; an IM product calculator configured to calculate a second IM product caused by the transmission signal in a received signal based on the first IM product; and a subtractor configured to subtract the second IM product from the received signal.

A full-duplex transceiver with passive inter-modulation (PIM) cancellation using a feedforward filtering structure is presented. The transceiver can comprise a duplexer, a transmitter, a receiver, a summer, and a behavioral model module (BMM) that is used to estimate an estimated inter-modulated signal using a feedforward structure. The summer receives a receive signal output from the receiver and a compensation signal, and output a PIM compensated receive signal based on the difference between the receive signal output and the compensation signal. Further, the BMM receives the multiband transmit signal input and the PIM compensated receive signal, where the BMM tunes the transceiver to output a PIM compensated receive signal. The BMM generates an estimated compensation signal from an align term, lag terms, and lead terms of the transmitted signals. The embodiments disclosed herein can be applicable to communication networks experiencing PIM distortion in a radio frequency chain.

The present disclosure relates to a 5G or pre-5G communication system for providing a higher data rate after a 4G communication system such as LTE. Particularly, the present disclosure relates to pre-processing for Filter Bank Multi-Carrier (FBMC) in a wireless communication system, and a method of a communication node includes the operations of receiving a signal from a counterpart node, determining a pre-processing scheme according to a channel and a frequency confinement characteristic of a filter based on the received signal, and performing pre-processing for a subcarrier set corresponding to the filter in accordance with the determined pre-processing scheme.